Njirimara nke oche mposi UF

Urea formaldehyde (UF） oche mposiA na-ejikarị akwadebe amino alkyd baking agba na alkyd resin iji meziwanye ike na nkụ nke ihe nkiri agba. Enwere ike ijikọ oche mposi UF na resin alkyd na-adịghị ihicha iji mee acid na-agwọta amino agba, nke enwere ike iji maka mkpuchi ọkụ nke ngwá ụlọ. Mana nguzogide ihu igwe, mgbochi mmiri na njide ọkụ dị ntakịrị ogbenye. Enwere ike iji resin epoxy na resin alkyd kwadebe primers na eserese ime ụlọ nwere ihe dị iche iche. Isi njirimara gụnyere:

1. Ọnụ ego nkeoche mposi UFdị ọnụ ala na akụrụngwa zuru ezu.

2. The molekụla Ọdịdị nkeurea formaldehyde (UF) oche mposinwere atom oxygen polar, n'ihi ya, ọ nwere ezigbo mmachi n'elu. Enwere ike iji ya mee ihe maka primer na mkpuchi nke etiti iji meziwanye adhesion n'etiti topcoats.

3. N'ihi naUF oche mposienwere ike ịgwọ ya na ụlọ okpomọkụ mgbe ị na-eji acid catalyst, enwere ike iji ya mee ihe mkpuchi osisi abụọ.

4. Ihe nkiri agba a gwọrọ na urea formaldehyde resin nwere ezigbo mgbanwe.

5. Urea formaldehyde resin nwere nnukwu viscosity, uru acid dị elu na nkwụsi ike nchekwa adịghị mma.